Acoustics Source Identification of Diesel Engines Based on Variational Mode Decomposition, Fast Independent Component Analysis, and Hilbert Transformation

<div>The results of the IC2 component separated by the VMD-FastICA method. (a) Time-domain waveform of IC2. (b) Fourier spectrum of IC2. (c) Hilbert spectrum of IC2. (d) Continuous wavelet transform of IC2.</div>

Shock and Vibration

fig18

Figure 18

Figure 18: Acoustics Source Identification of Diesel Engines Based on Variational Mode Decomposition, Fast Independent Component Analysis, and Hilbert Transformation 

Figure 18 | Acoustics Source Identification of Diesel Engines Based on Variational Mode Decomposition, Fast Independent Component Analysis, and Hilbert Transformation 